baber/WOPTO huggingface dataset:
Patent DE-2338691-A1 (DE)
Title: Fuel cell for soluble reagents - with reaction chamber between anode and cathode chambers speed. by membranes
Inventor: BECKER EKKEHARD
IPC: H01M8/00
Filed: 1973-07-31
Abstract: A fuel cell consists of an anode chamber and a cathode chamber, sepd. by a reaction chamber with membrane partitions. The reagents are dissolved in the anode and cathode chamber by a suitable solvent and diffuse through the membranes into the reaction chamber. The prods. of reaction are continuously removed. The reactions take place at low temp and low pressure. Losses and maintenance are reduced to a min. The raw matls. used are easily obtainable. The reaction can be accelerated by higher temp. and pressure.
Patent DE-2339665-A1 (DE)
Title: Electrodeless plasma arc light source - using enclosed high pressure rf ionized gas
Inventor: HOLLISTER DONALD D
IPC: H01J65/04
Filed: 1973-08-04
Abstract: The light source comprises a pressurised plasma-forming gas confined in a container, and an RF coil surrounding the container to ionise the gas as a plasma arc suspended independently of the container walls, the gas pressure and the RF field frequency and magnitude being such that the plasma diameter is less than the container diameter. Stable high efficiency discharge is possible.
Patent DE-2341605-A1 (DE)
Title: Spectacles with holder - feature a flexible strip between the holder and spectacle
Inventor: AMTENBRINK FRIEDRICH
IPC: G02C5/22
Filed: 1973-08-17
Abstract: The technique described features a plastic flexible strip that replaces the normal hinge that exists between the arms, and the lenses of a pair of spectacles. This strip may be formed as part of the spectacle moulding, or it may be inserted as a separate component. Attachment of the strip may be by gluing, screwing or rivetting.
Patent DE-2343677-A1 (DE)
Title: Grinding and polishing tool blade attachment - has claws whose points run parallel to its surface
Inventor: JUNG JOACHIM
IPC: B24D9/08
Filed: 1973-08-30
Abstract: A holding body for tool blades of grinding and polishing tools, has chip-shaped claws, which are stamped by punch-type cutting tools, and which directly accept and releasably fix a counter adhesive connected to the grinding or polishing medium. The tips of these claws run parallel to its surface. The attachment method may be used for file type hand tools, and is esp. suitable for tools with curved or facetted faces.
Patent DE-2349354-A1 (DE)
Title: Frequency response measurement of flutter characteristics - in aircraft depends on observation of damped oscillations
Inventor: HAIDL GUENTHER
IPC: G01M9/06
Filed: 1973-10-02
Abstract: Oscillations of different frequencies are used in the case of aircraft this allows a graph of flutter amplitude against aircraft velocity to be drawn, which gives an easy estimation of the critical velocity. A burst of oscillation is applied to the structure at a particular frequency and the amplitude of oscillation of the structure is observed. This grows over a period to some maximum value, and this time is observed. The drive is then removed and the oscillation of the structure decays over another period which is also observed. From the times involved a flutter characteristic is constructed.
Patent DE-2356280-A1 (DE)
Title: Feed mechanism for wire or strip to press - gives accurate high speed feeding
Inventor: KAISER HEINZ
IPC: B21D43/11
Filed: 1973-11-10
Abstract: A bar and grip finger form feed jaws these being separated at the end of the feed stroke and closed at the beginning. The bar is long in the direction perpendicular to the paper and is guided to move from right to left (and back) without play or tilting and with minimum friction. A crank rotates about its axis and carries a crankpin on an adjustable slider whose throw can be measured by the measuring cloth. On the crank pin a square hub is rotatably mounted. To drive the bar parallel-movement roller bearings are fitted between it and a cross-slot in the hub. The aim is to achieve direct connection between the crank pin and the jaws with minimum overhang, play and reciprocating weight.
Patent DE-2357407-A1 (DE)
Title: Hardened cement material from coal flue gases - scrubbed with alkaline earth hydroxide, giving suspension of fly-ash and alkaline earth hydroxide and sulphite
Inventor: MINNICK LEONARD JOHN
IPC: C04B18/02
Filed: 1973-11-16
Abstract: The title material comprises the set hardened reaction prods. of 0.25-70 alkaline-earth hydroxide 10-99.5 or fly ash and 0.25-70 wt.% alkaline-earth sulphate. Coal-burner flue gases are desulphurised by chemical treatment in a scrubber yielding an aq. suspension of alkaline-earth carbonates, hydroxides or oxides, and this suspension is treated by removing water and adding fly-ash and alkaline earth hydroxides, the solids content of the treated suspension being 30-90 wt.%. The material is opt. shaped into granules which are kept until they harden sufficiently for use as aggregate.
Patent DE-2361283-A1 (DE)
Title: Knitting machine pattern selector mechanism - using electro-magnetic system with two coil windings for selective operation
Inventor: FINDLAY PETER MICHAEL
IPC: D04B15/78
Filed: 1973-12-08
Abstract: The two coil windings are provided round the actuating shaft so that according to the electric current fed to the selection unit, the actuating shaft is moved between two limit stops to give an actuating movement to the selector shaft for the pattern butt, in a horizontal motion radial to the needle ring. This gives a positive operation between two set positions, whatever the position of the pattern butt.
Patent DE-2363014-A1 (DE)
Title: Exo-5-(2-imidazolyl)-bicyclo(2.2.2)oct-2-ene - by prepd by cyclizing the 5-(N-(2,2-dialkoxy-ethyl)-guanyl)-cpds
Inventor: NARR BERTHOLD DIPL CHEM DR
IPC: C07D233/06
Filed: 1973-12-19
Abstract: Exo-5-(2-Imidazolyl)-bicyclo 2,2,2 oct-2-ene (I) and its acid addn. salts are new cpds. prepd. by cyclising cpds. of formula (II): (where R is alkyl). (I) has anticoagulant activity, giving prolongation of bleeding times.
Patent DE-2400623-A1 (DE)
Title: IC engine spark plug - has inner conductor to centre electrode, insulator and earthed casing with outer electrode
Inventor: SEEFLUTH UWE C
IPC: H01T13/40
Filed: 1974-01-08
Abstract: The spark plug for an internal combustion engine consists of an inner conductor, ending in the centre electrode, an insulator, and an earthed housing carrying the outer electrode. The arrangement of the inner conductor and the conductive housing forms a capacitive device, with the intermediate insulator forming its delectric. Preferably the arrangement of the inner electrode and the conductive housing is of parallel and tubular (cylindrical configuration. Laminated capacitor sheets may be incorporated, embedded or cast in the insulator substance. The laminations may protrude radially or axially into the regions of the other electrode (inner, or housing) and may be of corrugated or bent configuration.
Patent DE-2402563-A1 (DE)
Title: Tubular control handle for high-capacity pumps - contains electric switch for controlling pressure generator and thus fluid supply
Inventor: KRAENZLE JOSEF
IPC: B08B3/02
Filed: 1974-01-19
Abstract: The tube for the high capacity cleaning steam or liquid pump is enclosed by a housing designed as the handle and contains a hand-controlled on-off device in the form of an electric switch for controlling the pressure generator and thus the supply of liquid or steam. Since the electric switch is attached in or on the housing of the handle-tube, the supply hose and cable can be fastened together to the same. The electric switch is attached to a holding block for the tube running through the housing or to the inner or outer wall of the housing and the switch itself is actuated by a lever connected to the block or housing.
Patent DE-2407701-A1 (DE)
Title: Support for live underground rails - with jaws holding rail via intermediate hollow bodies of plastic material
Inventor: DOERING HERMANN
IPC: B60M1/30
Filed: 1974-02-18
Abstract: Live rail support, esp. for underground rails, has clamping jaws for holding the rail on a supporting body via elastic hollow intermediate bodies of an abrasion resistant plastic, esp. polyamide. Enables the rails to slide in the lengthwise direction while avoiding play of the rails within the support. The plastic intermediate body can be produced with high accuracy and a smooth surface.
Patent DE-2407945-A1 (DE)
Title: Test system for printed circuit boards - involves foil which changes colour above given temperature
Inventor: DREISBACH BODO DIPL ING
IPC: G01R31/28
Filed: 1974-02-19
Abstract: A thermocolour foil is pressed against the circuit board to make good thermal contact with it and an electric current is passed through the conducting paths on the circuit board, so that excessively narrow points are heated above the foil response temperature. The load current for testing the foil is in the form of at least one pulse. The thermocolour foil has holes in it which correspond to contacts on the circuit board; contact pins are pressed to the contact points, and the current pulses are applied to the conducting paths through these pins.
Patent DE-2409804-A1 (DE)
Title: Four stroke piston engine - has heat exchanger in a central housing section between the two pistons
Inventor: KEYLWERT JOHANN DIPL ING
IPC: F02B75/02
Filed: 1974-03-01
Abstract: The engine consists of two rotors fitted to a common eccenter on a main shaft turning inside a housing with a six-arched epitrochoid. The combustion air from the intake passes to the compression chamber via the inlet channel. Shortly before the rotor arrives at the top dead centre compression point, a transfer port is uncovered in the housing centre section leading to a heat exchanger in the exhaust collection chamber arranged in the housing centre section. The exhaust collection chamber is sealed in relation to the eccenter by a cover coupling the two rotors together. The housing side plates as well as the centre section are provided with cooling chambers to give an intensive cooling area esp. in the compression chamber region. The compressed combustion air passes from the heat exchanger via connecting and inlet channels to the expansion chamber on the second piston side and pass through the heat exchanger and out via the exhaust port.
Patent DE-2411622-A1 (DE)
Title: Motor housing with inward protruding flaps around end - clamps edges of bearings cover plate to housing without welding
Inventor: GRUBER KURT
IPC: H02K5/15
Filed: 1974-03-11
Abstract: The motor housing allows the bearing cover plate to be fastened to it without welding. The edges at the ends of the housing have flaps pressed out of the housing curvature and protruding inside the end of the motor. The bearing cover plate has edges that rest against these flaps. The flaps are distributed at equal distances around the housing end, and each presses with its axially-outermost face against the innermost face of the bearing plate thereby holding it firmly in place aginst an angled end-stop resting against the plate outer face and formed by the deformed edge of the housing.
Patent DE-2412266-A1 (DE)
Title: Polymer dispersion in org. medium - for prepn. of aq. solns of polymer by phase inversion
Inventor: FRIESER JOSEF
IPC: C02F1/54
Filed: 1974-03-14
Abstract: The dispersion comprises (a) a continuous org. phase which is partly miscible with water, (b) a finely divided high m.wt. polymer dissolved in or swollen by water and (c) a w/o emulsifier sol. in the org. phase and formed by polymsn. of (a) 10-50% (a) 10-50% (wt) monomers with basic N atoms (b) 90-50% monomers with >=6C alkyl side chain or a mixt. of such monomers with a smaller amt. of other water insol. vinyl monomers, and opt. other surfactants, the HLB value of the emulsifying system being 6 for a pH value >4, and >8 when the pH is adjusted to 2. The dispersion is used for prepn. of aqs. soln. of any polymer g.g. polyacrylamide polyvinylpyrrolidone, PVA, polyhydroxyalkyl(meth) acrylate by adding the dispersion to an aqs. phase and acidifying to convert the emulsifier to the o/w type and cause phase inversion; the polymer then passes into soln. in the aqs. phase. The process makes use of moderate amts. of auxiliaries chemicals and reduces pollution hazard.
Patent DE-2412919-A1 (DE)
Title: Thermally-insulating plaster coating for indoor or external use - a dry, free-flowing mixt. for easy conveying on building siisites
Inventor: WOLF HEINZ
IPC: C04B28/02
Filed: 1974-03-18
Abstract: Dry, flowable mixt. which can be mixed with water on a building site and sprayed or plastered onto the internal walls of houses or the facades of buildings, has the compsn. (kg) 20-60 white or grey cement; 10-40 silica flour or grit; 0.5-5 fine cellulose fibres; 0.5-5 powdered aluminium silicate; 2-10 (about 300 l) blown polystyrene or polyurethane granulate; 0.05-0.3 methyl cellulose as plasticizer; 0.2-2 CaCl2; and 5-35 pumice. A pref. compsn., esp. for external plaster, contains (kg) 50-60 cement; 10-15 silica flour or grit; 1-2 cellulose fibres; 2-3 aluminium silicate powder; 4-5 blown polystyrene or polyurethane grains; 0.1-0.2 methyl cellulose; 0.5-1 CaCl2; 25-30 pumice. Provides a light, weather- and age- resisting coating, insensitive to frost, with good thermal insulation (thermal conductivity 0.09-0.12 kcal/mhk) and which can be spread flat.
Patent DE-2414179-A1 (DE)
Title: Collision-proof column gear change - with gear linkage at right angles to steering column in parallelogram layout
Inventor: HOHEISEL PETER DIPL ING
IPC: B60K20/06
Filed: 1974-03-23
Abstract: The column gear linkage is mounted at right angles to the steering column and runs to a control linkage mounted on the transmission tunnel. During a collision the linkage provides no resistance and hence does not injure the driver. The linkage can be simply assembled with a cable drive inside a hollow tube, with the cable drive selecting the gate and the rotation of the tube and respective gear. The gear linkage is also reduced in size and requires no linkage inside the engine compartment. The linkage connects with a point on the forward gearbox side via an intermediate lever pivoted on the vehicle chassis.
Patent DE-2415472-A1 (DE)
Title: Bit error rate monitoring method - for PCM telecommunication transmission systems involves use of parity bit
Inventor: NEUFANG KARLHEINZ
IPC: H04J3/14
Filed: 1974-03-29
Abstract: The number of "1" bits transmitted in a pulse frame is complemented to an even or odd number by a given bit which is not used for information transmission. Parity testing is carried out at the receiving end, and the parity bit used to complement the above "1" bits is a bit in a pilot signal transmitted in each second pulse frame; a test signal giving the bit error is used to step forward a counter which delivers an alarm signal on reaching its end position. If it has not reached its end position at the end of a specified time interval, it is reset to zero, and a warning signal is derived from the last but one position of the counter.
Patent DE-2415756-A1 (DE)
Title: Electrocardiogram self adhesive electrode holder - has protective sheet with previously punched out central hole both sheets stamped out together
Inventor: PEINIGER KLAUS
IPC: A61B5/0408
Filed: 1974-04-01
Abstract: A holder for attaching the electrode plates of an ECG to the human body is mfd. by cutting out a holder from self-adhesive material together with a protective, pull-off sheet of plastics or parchment paper. The protective plastics or parchment sheet is punched to produce the central circular holes in each of the holders, the punched-out disc remaining however in the sheet; the self-adhesive support material is applied to the under face of this pull-off protective sheet and glued to it; and the circular external contour with holding tab is simultaneously stamped out of the two thicknesses of sheet and the central hole is removed from the combined sheet. The support sheet is not in any way damaged by the cutting out of the central hole from the temporary paper cover sheet.
Patent DE-2419095-A1 (DE)
Title: Rotary rod lock for different bolt-sizes - has rotary cylinder-lock on bolt centre-line offset against drive-shaft centre-line
Inventor: LUPP ARTUR
IPC: E05B63/04
Filed: 1974-04-20
Abstract: The rotary bar lock has a push-bolt and a drive-shaft, which are supported in a cover and are set to act on a rack on the bolt. The rotary body is formed by the body of a cylindrical lock, which is located on the centre-line of the push-bolt and is offset against the centre-line of the drive-shaft carrying the bolt-bars, and is fixed to the lock-cover. The lock can be easily used to both as a right handed and a left handed lock and can take a bolt 20 mm in diameter or a bolt of only 15 mm. diameter.
Patent DE-2428795-A1 (DE)
Title: Corrugating stretched thermoplastic sheet - by heating one side only before low pressure moulding
Inventor: FRIEDERICH ERNST
IPC: B29C53/28
Filed: 1974-06-14
Abstract: Stretched thermoplastic sheets are corrugated by a process in which their whole area, and across the stretched axis if longitudinal or in any direction if stretched in two directions, is heated on one side to above softening temperature while the other side does not reach that temperature. Requires only low pressure without increased degree of prestretch.
Patent DE-2441690-A1 (DE)
Title: Method of finding faulty connection in printed cct. - uses pistol shaped mechanical vibrator operated mechanically hydraulically or pneumatically
Inventor: TITTES EBERHARD DR
IPC: G01R31/50
Filed: 1974-08-30
Abstract: A method of and apparatus for finding faulty electrical connections in an electrical circuit. The apparatus comprises an electrical supply source (18), a conducting plate (10), a mechanical vibrator and a test pointer (17), and an indicator (19). The electrical connection (14) is exposed to mechanical vibrations and to the electrical supply, and is electrically tested for continuity. The mechanical vibrations can be produced mechanically, hydraulically or pneumatically. The vibrator is of the shape of a pistol and transfers the vibrations to the connection to be tested via the cord and pointer (17). This type of tester is especially suited for testing connections on printed circuit boards.
Patent DE-2441950-A1 (DE)
Title: Loudspeaker box made of transparent plastics - is designed to appear smaller, and it may be coloured on the inside
Inventor: POENSGEN KARL OTTO
IPC: H04R1/02
Filed: 1974-09-02
Abstract: The loudspeaker box is constructed from transparent plastics to make it appear smaller and therefore less imposing in smaller rooms etc. The inside surfaces of the transparent walls may be coloured. This idea for making the loud-speaker box appear smaller can be applied to boxes of all shapes and sizes -- rectangular, pyramid, hemispherical etc. Production costs can be reduced by employing rational production methods -- especially with multi-directional boxes with speakers in two or more walls. The wire connections to the loudspeakers inside the box are clearly visible as are also the details of internal construction of the box, which give the whole assembly an interesting appearance.
Patent DE-2449674-A1 (DE)
Title: Automatic handling equipment for stacks of tiles - includes lifting bar carrying gripping mechanism with equalising jaws
Inventor: GABBRIELLI FRANCO
IPC: B66C17/12
Filed: 1974-10-18
Abstract: The equipment is fro the automatic transfer of piles of tiles, during manufacture, from a table to a wagon upon which they will be passed through the baking ovens. The wagon is on rails and passes beneath the overhanging rails on which a carriage runs, driven by an electric motor. On the carriage a lifting bar carries the gripping mechanism in which hinged tongues carry equalising jaws with griping pads to grip a pile of tiles the upper ends of the tongues, above the hinge pins, are pressed apart by a wedge mechanism within the head. In the position shown the pile of tiles is about to be released after which the bar will raise the mechanism and, on the carriage, will travel to pick up another load which it will lay alongside the previous one.
Patent DE-2456336-A1 (DE)
Title: Combination colouring of aluminium alloys - using electrolyte contg. stannous or ferrous salts and immersion in heteropolyacids
Inventor: GADDE OVE CHRISTOPHER
IPC: C25D11/22
Filed: 1974-11-28
Abstract: Workpiece is oxidised anodically, stained electrolytically in an acid soln. of a metal salt which is more electronegative than Cu in electromotive series, using AC of 1-50 V for 0.1-15 min., then immersed in an aq. soln. of heteropolyacid of Si or P with Mo or W, without applying current, and sealed by standard methods. The electrolysis bath contains Cu salt or salts of other materials, which are more electropositive than Cu in electromotive series, and in addn., small quantities of another suitable metal salt, (I) e.g. Sn(II)-salts or salts of Ni, Co, Fe and Zn. (I) have a reducing activity on anions of heterpolyacids. Small particles of metal and (I) are built into oxide layer. On immersion into heteropolyacid soln. a colour change takes place which would not be caused by salt of Cu or more electropositive than Cr in electromotive series, and, in addn. small quantities of another suitable metal salt, (I), e.g. Sn(II)-salts or salts of Ni, Co, Fe and Zn. (I) have a reducing activity on anions of heteropolyacids. Sn all particles of metal of (I) are built into oxide layer. On immersion into heteropolyacid soln., a colour change takes place which would not be caused by salt of Cu or more electropositive metal alone.
Patent DE-2459309-A1 (DE)
Title: Arc ignition for arc welding - with current supply set at lower value while electrodes touch to reduce loading
Inventor: HAHN GUENTER
IPC: B23K9/067
Filed: 1974-12-14
Abstract: The arc ignition process for arc welding uses the procedure whereby the electrode is touched by an opposing electrode and then lifted away from it, both electrodes being connected to a current supply. Before the electrodes are brought together the supply is set to give a lower current not strong enough to effect welding. The current is increased to the desired welding level as the electrodes are sepd. This arrangement lowers the thermic loading imported to the electrodes and provides an economical construction for the power supply since relatively small short circuit currents are demanded.
Patent DE-2461250-A1 (DE)
Title: Iron particle separator from shredded scrap - static magnetic field and electrical induction coil devices coupled to deflector shute
Inventor: WILDEN HEINRICH
IPC: B07C5/344
Filed: 1974-12-23
Abstract: A system for removal of iron particles from a non magnetisable metal which consists of finely divided or shredded scrap of preferably less than 100mm max. particle size, preferably aluminium scrap, has the finely shredded scrap moved in a uniformly divided stream of low overall height through at least one static magnetic field. A warning and/or control device which indicates the presence of magnetisable components in the input material is coupled to a deflector chute. An electrical induction coil formed into a monitor or probe is extended across the material flow stream.
Patent DE-2461398-A1 (DE)
Title: Dish-shaped machine brush - has hollow body or steel plate
Inventor: REISLAENDER KONRAD
IPC: A46B13/00
Filed: 1974-12-24
Abstract: The brush is for use as an intake or pavement strip brush on a street-sweeping machine, having a dish-shaped body for fixing to the driving head with bristles on the working side. The body (1) is hollow and of steel plate. It can consist of two dishes of plate, that on the working side carrying the bristles, while the other acts as a cover on the driving head side, the dishes being jined together along their edges. The brush carrier dish (1) and the cover dish (15) can be symmetrical in construction, joined to each other at the centre as well as along the edges.